Boiler.



1- i i. I I WWX7 H? M. J. ERK. BOILER.

I APPLICATION FILED APR. 11, 1911. 1,050,632. Patented Jan.14,1913.

2 SHBETSSHEET l.

fncsses/ M. J. ERK. BOILER.

I APPLICATION FILED APR.11, 1911. 1,050,632.

2 SHBETSSHEET 2. F M,

' A 7' TOR/YE)! Patents d Jan. 14,1913.

' described in To all whom it may concern MARTJ IN J". ERIK, OF ELMIBA, NEW'YORK.

Be it known-that I, MARTIN J. ERK, of Elmira, in the county of Ohemung, in the State of New York, have invented new and useful Improvements in Boilers, of which the following, taken inconnection with the accompanying drawings, is afull, clear, and exact description.

This invention relates to certain improvements in boilers for generating high or low' pressure steam for power or heating purposes and is also' adapted to be used as a generator for hot water circulating .systerns; g

The main object is to produce a simple and highly eflicientboilerof the character which water or otherliquid may be rapidly converted into steam or circulated through the hot water system with a minimum con'sumptionof fuel. In other words I have sought to distribute the water or other liquid through the combustion chamber in comparatively shallow channels in such manner as to expose relatively small quantities of water to relatively large heating areas without in any way complicating the work of assembling the water containing bet I Another object is to utilize the upper por-- chambers or pipes within the combustion chamber. 3

These objects contemplate the use of hollow or partially hollow division walls within the combustion chamber or fire box constructed and arranged so that the products of combustion rising between them will overflow downwardly around the outside,-

thereby practically enveloping the entire system of water heating conduits within the heating chamber and more efi'ectively consuming the gases and other fuel products ore passing out through the outlet.

tion of the heater as a reservoir for coal or similar fuel so that it may be fed more easily in small quantities into the combus-' tion chamber for the purpose of maintaining a higher degree of combustion with less liability of waste of gas and other fuel products which otherwise would pass off through the outlet.

Other objects and uses relating to specific parts of the boiler will be brought out in the following description.

In the drawings-Figure 1 is a vertical sectional view of a boiler embodying the various features of my invention showing portions of the heating coils as partly broken Specification of Letters-Patent. Application filed Aprilli, Iall.

BOILER.

Patented Jan. 14, 1913. Serial No. 620,817.

zontal sectional view of a modified form of hollow partition walls and fire box, taken on the line 2+2 of Fig. 3, this view omitting the boiler setting, hollow baflie, etc., of Fig. 1, and, Fig. 31s a transverse sectional view of the hollow partition and fire box' structure shown in Fig. 2, the section being taken on line 33 of said Flg. 2

The-boiler shown in Fig. 1 comprises an outer wall or casing -1 of fire brick or other suitable material resting upon a suitable supporting base .2 andrismg some distance therefrom to form an interior combustion chamber -3. Within the base of the combustion chamber is an ash pit 4, the top wall thereof being provided with an opening and arranged at said opening and supported by the top wall of the pit is a grate 5. Mounted upon the top wall of the pit 4: is avertically disposed cylindrical member 6 which in connection-with a porgrate 5 constitutes a fire pot, a portion of the top wall of the pit 4 and the grate forming the bottom of the fire pot. Mounted within and inclosed by the member 6 is a plurality of, in this instance, two, hollow division walls 7- and 8 arranged one within the other some distance apart to form .an intervening fire passage 9.

These partition walls preferably consist of away and partly in section. Fig. 2 is a horition of the top wall of the pit/t and the coils of pipe having their convolutions rest.-

mg one upon the other and extending to a height substantially equal to that ofthe fire pot 6. r

The outer coil 7. is of substantially the same diameter as that of the interior of the fire pot and preferably consists of a single pipe coiled upon itself in the manner shown and having its lower end connected to a return pipe 10, while its outer end 1s connected toan upflow pipe -11-.- In i like manner the inner coil -8- consists of a single'pipe of somewhat smaller cross sectional diameter than that of the coi1'-7 and having its lower end connected to a return pipe 12 and its outer end connect-' v The lower convolution of the outer coil preferably rests upon suitable bearings 14 surrounding the grate 7- and is additionally supported by its return and upflow pipes -1 0-- and 11 which extend outwardly through openings in the inclosed wall or case- 1 In hk'e manner the coil --8- is supported by its laterally extending return and upflow pipes -12-- and -13 which extend through suitable openings ing 1- preferably at the same sides and in proximity to the corresponding return and upfiow pipes of the outer coil -7-.

outer coil '7- particularly when it is con-- sidered that the pipes of the inner coil -8-- are somewhat smaller than those of the outer coil and in some instances it may be possible to use this inner coil separately brom the outer coil, asfor example, when quired in which case the fuel would of course be placed only within the inner coil and not between the outer coils.-

A horizontal baflie pipe-coil -15- is-supported'within the combustion chamber some distance above the coils -7- and -8- with its convolutions in close juxtaposition and is provided.with a return flow pipe 16-' and an upfiow pipe -17- extending laterallythrough and supported in suitable e enings in the wall or casing 1-- for holding said coil in its operative position and permitting the convolutions to expand and contract freely without liability of overstraining the connections of its ends, the central portion of the coil being left open at 18 for permitting the entrance of fuel from thetop within the coils 7- and -8- and onto the underlying grate 5 x 2 a Directly above the horizontal coil --15 is a crown sheet or cover plate 19 forming the upperwall of the combustion chamber and in this instance provided with a central opening 20.having a movable lid '--21+- which may be opened at will to permit the entrance of fuel through the openings 20 and -.18- within the underlying coils -7- and 8-.

The casing 1 extends some distance above the plate 19 forming a fuel reservoir -22 for'the reception and retention of a limited amount of reserve fuel which may be forced into the opening -20- when the lid 21 is raised.

7 The return pipes for all of the coils are preferably arranged at one side of the eater in close proximity to each other,

while the vupflow pipes are arranged in close in the outer wall or cas-,

appliance requiring steam heat or hot water heat, said distributing ead belittle steam or hot water heating is reproximity to each other at another side of the heater and in this instance are connected separately to a superposed Water and steam dome or distributing head -23-- having suitable distributing pipes -24= leading from the upper side thereof and adapted to be connected to the radiating system for heating purposes or to an engine or other ower or ing provided with a water gage -25- and steam gage -26-- for purposes well known.

The return pipes for the coils --7-, -8-.- and baflle --l5 may be connected to a single return conduit -27- which in turn may be connected by a pipe -28-'to the lower water containing chamber of the head -23 or may be connected by an extension -29- to a hot water radiating system and in order that the boiler may be used for either hot water or steam, the extension '29 is provided with a valve --30-, While the branch return pipe -28-' from the head -23 is provided with a valve -31-.

When it is desired to use the boiler for generating high or low pressure steam for power or heating purposes, the valve -30 maybe closed and the valve -31 opened which allows any water of condensation which may return through the distributing pipes -24 to the head --23- to return through the pipes -28- and -27 to the return pi es of the coils 7-, 8- and -15. n the other hand when it is desired to use the boiler for hot water. circulation, the valve -3lmay be closed and the valve 30 opened, thus permitting the water to return 'from the circulating system through the pipe 27- to the coils after passing upwardly through the upflow pipes, distributing head and distributing pipes through the heatingsystem.

11 Figs. 2 and 3 hollow liquid containing fire box '-35- and a series of hollow liquid containin partitions -36 dividing the interior 0 the fire box into a series of fuel compartments, said partitions being preferably made of boiler iron separately from the fire box and are provided with upflow and return pipes 37 and -38 preferably leading from the upper and lower portions of their opposite ends respectively. These pipes -37 and -38 extend laterally through suitable stay tubes -39-- connecting the inner and outer shells of the fire box and forming water tight joints therewith, said lateral extensions and stay tubes serving as. supporting means for holding the hollow partitions in operative position within the fire box where they are entirely enveloped by the products of combustion. These partitions are used more especially in heaters of rectangular form'and take the have shown a" i ntense place of the coils --7- and '8- shown in Jdig. L When/the boiler is made rectangular in the manner described, the hollow fire hon serves the same purpose as the fire box -6-.oi the construction shown in Fig. 1 except that it has the additional function of containing water or other liquid-which it is desired to convert into steam or to cir culate through a hot Water heating system, in which case the fire box may be inclosed in a casing or outer shell l-. with a horizontal partition similar to the partition l9- and may also be provided with an overlying horizontal hollow baflie corresponding to the coil 15. Otherwise the:

hollow partitions may be connected to the heating or circulating system in substantially the same manner as-shown in Fig. 1.

' WhatI claim is:

A steam or hot water boiler comprising in combination with a distributing head, an outer casing having thereof and a bafie some distance above the grate forming with the casing a combustion 'being prpvided with an chamber, the latter outlet below the combustion chamber spaced apart from the pluralityof fuel compartment-s,

head, a return conduit a grate in the bottom grate, a fire hox within the casing, a plurality of unconnected independ- 'ent hollow liquid containing partitions dithe fire box into a each partitlon havmg an independent upflow pipe and an independent return flow pipe connected thereto and extending upwardly from the walls of the casing, the llP fiOW pipes communicating with the distributing common to the re turn flow pipes and to which the latter are connected, a branch return pipe connecting the return conduit with the distributing viding the interior of head, and valves in the return conduit and return branch pipe whereby the heater is utilized for the production of steam or hot water, substantially as described. p In witness whereof I. have hereunto set my hand on this 3d da of April 1911.

. lhARTIN J. EEK. Witnesses:

H. E. CHAsn,

E. F. SPEAKING. 

